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IMPORTANT
Earn 100

After three successive equal percentage rise in the salary, the sum of ₹1000 turned into ₹1331. Find the percentage rise in the salary.

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Important Questions on Percentages

HARD
CAT
IMPORTANT
How to prepare for Quantitative Aptitude for the CAT>Chapter 8 - Percentages>Level of Difficulty>Q 5
Sudhir, a very clever businessman, started off a business with very little capital. In the first year, he earned a profit of 50% and donated 50% of the total capital (initial capital + profit) to a charitable organisation. The same course was followed in the second and third years also. If at the end of three years, he is left with ₹33750, then find the amount donated by him at the end of the second year.
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CAT
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How to prepare for Quantitative Aptitude for the CAT>Chapter 8 - Percentages>Level of Difficulty>Q 6
In an examination, 48% students failed in Physics, 32% students in Chemistry and 20% students failed in both the subjects. If the number of students who passed the examination was 880 (by passing both the subjects), how many students appeared in the examination, if the examination consisted only of these two subjects?
MEDIUM
CAT
IMPORTANT
How to prepare for Quantitative Aptitude for the CAT>Chapter 8 - Percentages>Level of Difficulty>Q 7
A machine depreciates in value each year at the rate of 10% of its previous value. However, every second year, there is some maintenance work so that in that particular year, depreciation is only 5% of its previous value. If at the end of the fourth year, the value of the machine stands at ₹146205, then find the value of machine at the start of the first year.
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IMPORTANT
How to prepare for Quantitative Aptitude for the CAT>Chapter 8 - Percentages>Level of Difficulty>Q 8
Kaku's project report consists of 25 pages each of 60 lines with 75 characters on each line. In case, the number of lines is reduced to 55, but the number of characters is increased to 90 per lines, what is the percentage change in the number of pages. (Assume the number of pages to be a whole number).
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CAT
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How to prepare for Quantitative Aptitude for the CAT>Chapter 8 - Percentages>Level of Difficulty>Q 9

The price of soap is collectively decided by five factors: raw materials, research, labour, advertisements and transportation. Assume that the functional relationship is: Price of soap=k×Raw material cost×Research cost×Labour cost×Advertising cost×Transportation cost. If there are respective changes of 20%, 20%, -20%, 25% and 10% in the five factors, then find the percentage change in the price of soap.

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IMPORTANT
How to prepare for Quantitative Aptitude for the CAT>Chapter 8 - Percentages>Level of Difficulty>Q 10
The ratio of Jim's salary for October to his salary for November was 9:8 and the ratio of the salary for November to that for December was 3:4. The worker got ₹40 more for December than for October and received a bonus constituting 40% of the salary for three months. Find the bonus.
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CAT
IMPORTANT
How to prepare for Quantitative Aptitude for the CAT>Chapter 8 - Percentages>Level of Difficulty>Q 11
Praveen goes to a shop to buy a sofa set costing ₹13080. The rate of sales tax is 10%. She tells the shopkeeper to reduce the price of the sofa set to such an extent that she has to pay ₹13080 inclusive of sales tax. Find the percentage reduction needed in the price of the sofa set to justify her requirement.
EASY
CAT
IMPORTANT
How to prepare for Quantitative Aptitude for the CAT>Chapter 8 - Percentages>Level of Difficulty>Q 12
The price of a certain product was raised by 20% in India, The consumption of the same article was increased from 400 tons to 440 tons. By how much percent will the expenditure on the article rise in the Indian economy?